List of VEMCO Compasses, Dividers, and Pens

Key:
🟡 “Yellow Dot” – Chrome finish, student model
🔴 “Red Dot” – Chrome finish, professional model
🔵 “Blue Dot” – Stainless Steel finish, premium model

Empty fields indicate data that I could not find. Similarly, question marks indicate names I am not certain of.

4" Bow Compasses

X	Dot	Model	Leg Design	Min. Dia.	Max. Dia.	Notes
•	🔴	C-230	Original	1/16"	5 1/2"	Bright chrome finish.
•	🔴	C-231	Original			Pen Compass

4 1/2" Drop Bow Compasses

X	Dot	Model	Leg Design	Min. Dia.	Max. Dia.	Notes
	🔴	D-710	Original	1/32"	2"	Brushed steel
•	🔵	SD-710 ?????	Original	1/32"	2"	Brushed stainless steel
•	🔵	D-580	Final			Bead blast stainless steel

4 1/2" Bow Compasses

X	Dot	Model	Leg Design	Min. Dia.	Max. Dia.	Notes
	🟡	?????	Original	1/8"	6 1/2"
•	🔴	C-410	Original	1/8"	6 1/2"
•	🔴	C-411	Original			Pen Compass. Has a permanently attached inking nib.
•	🔵	SC-410	Original	1/8"	6 1/2"	Stainless Steel - Seen in S-171L set.
•	🔵	?????	Final			Fine brushed stainless steel.
•	🔵	S-570	Final			Bead blast stainless steel. Has model number "S-570" stamped on the center thumbscrew.

6 1/2" Bow Compasses

X	Dot	Model	Leg Design	Min. Dia.	Max. Dia.	Notes
•	🟡	40-C	Original	1/8"	10"
•	🔴	C-110 Shiny	Original	1/8"	10"	Chrome plated finish. Comes in Vemco cardboard box.
•	🔴	C-110 Brushed	Original	1/8"	10"	Fine brushed finish. Seen in blue velvet-lined case. A "POST" box labels it "9200".
•	🔵	SC-110	Original	1/8"	10"	Stainless Steel - Seen in S-171L set.
	🟡	?????	Slimline	1/16"	13 1/4"	Smaller-width legs, and higher thumbscrew location.
	🔴	?????	Slimline	1/16"	13 1/4"	Carbon Steel. Smaller-width legs, and higher thumbscrew location, described on back of packaging of the SC-500.
	🔵	SC-500	Slimline	1/16"	13 1/4"	Stainless steel. Smaller-width legs, and higher thumbscrew location.
•	🔵	?????	Final	1/16"	13 1/4"	Fine brushed stainless steel. Large bow spring diameter.
•	🔵	L-560	Final	1/16"	13 1/4"	Bead blast stainless steel. Large bow spring diameter. Has model number "L-560" stamped on the center thumbscrew.

6 1/2" Speed Bow Compasses

X	Dot	Model	Leg Design	Min. Dia.	Max. Dia.	Notes
•	🟡	?????	Original
•	🔵	SB-550	Later			Bead blast stainless steel. Instead of bow spring, it has a plastic erector. Has model number "SB-550" stamped on the center thumbscrew.

6 1/2" Friction Dividers

X	Dot	Model	Leg Design	Max. Dia.	Notes
•	🔴	F-328 shiny	Original	7"	Bright chrome finish. Has metal erector, detents for opening grip, and original knurled handle.
•	🔴	F-328 brushed	Original	7"	Brushed finish. Has metal erector, detents for opening grip, and original knurled handle.
•	🔵	SF-328	Original	7"	Stainless Steel - Seen in original packaging. Has metal erector, detents for opening grip, and original knurled handle.
•	🟡	42-C	Later	7"	Has metal erector and original knurled handle.
•	🔴	?????	Later	7"	Fine brushed steel finish and original knurled handle. Has metal erector.
•	🔵	SF-590 ?????	Later	7"	Fine brushed stainless steel and triple knurling on handle. Has metal erector.
•	🔵	SF-590 ?????	Later	7"	Bead blasted stainless steel and triple knurling on handle. Has metal erector.
•	🔵	F-590	Final	7"	Bead blasted stainless steel and triple knurling on handle. Has plastic erector.

Drawing Sets

X	Dot	Model	Name	Notes
	🔴	A-171L	Original Design Drawing Set	Described in Mossner Catalog 159. Top grain genuine leather case with bright chrome: C-410, C-110, F-328, 43P, P-314, lead/spare parts capsule.
	🔴	A-171L Special	Original Design Drawing Set	Top grain genuine leather case with bright chrome: C-410, C-110, C-230, F-328, P-314, lead/spare parts capsule. NOTE: the P-314 Microliner Ruling Pen is missing from this photo.
•	🔴	Post 9206	Original Design Drawing Set	Cardboard box with: C-110, P-58, P-65, P-59, lead/spare parts capsule.
	🔴	?????	Original Design Drawing Set	Blue velvet-lined hinged wooden box with: divider, C-411, D-710, C-410, C-110, P-58, P-65, Extra Long Drop Bow Needle, lead/spare parts capsule.
	🔴	?????	Original Design Drawing Set	Blue velvet-lined case with flaps and snaps: C-110, P-58, P-65, lead/spare parts capsule.
•	🔵	S-171L	Original Design Drawing Set	Top grain genuine leather case with: SC-410, SC-110, SF-328, S43P, SP-314, lead/spare parts capsule.

Beam Compasses

Model	Name	Max. Rad.	Notes
B-366-6	Beam Attachment	6"	Has an adjustable point. Attaches to a bow compass. Seen in red velvet-lined case.
B-366-12	Beam Attachment	12"	Has an adjustable point. Attaches to a bow compass. Packaged in a cardboard box. Can use the P382, 43P, or S43P pen attachments for inking, and any of the B-4458 Beam Extensions (with Coupler).
B-366-18	Beam Attachment	8"	Has an adjustable point. Attaches to a bow compass.
B-366-24	Beam Attachment	12"	Has an adjustable point. Attaches to a bow compass.
B-440-6	Velox Beam Compass	6"	Two ends, without need for a bow compass. Packaged in a cardboard box.
B-440-8	Velox Beam Compass	8"	Two ends, without need for a bow compass. Packaged in a cardboard box.
B-440-12	Velox Beam Compass	12"	Two ends, without need for a bow compass. Packaged in a cardboard box. The one shown here also has a 12" B-4458 Beam Extension (with Coupler)
B-440-18	Velox Beam Compass	18"	Two ends, without need for a bow compass. Packaged in a cardboard box.
B-440-24	Velox Beam Compass	24"	Two ends, without need for a bow compass. Packaged in a cardboard box.
B-440-36	Velox Beam Compass	36"	Two ends, without need for a bow compass. Packaged in a cardboard box.
B-4458	Beam Extension (with coupler)	6", 8, 12, 18, 24, 36	Available in 6 sizes. Attaches to any Beam Attachment or Velox Beam Compass.
??????????	Beam Compass Set		Three beams, two couplers, a P610 inking nib, plastic points/graphite cylinder, and two ends. Packaged in a lined metal case.

Accessories

X	Model	Name	Notes
		*NEEDLES*
•	1-6	Shoulder Needle	This needle has a small, stepped-in point to limit paper penetration.
•	1-7	Divider Needle	This needle has a sharp tapered point.
•	P-59	Extension Shoulder Needle	For use with pen attachments on compasses. Has a small, stepped-in point to limit paper penetration.
•	S-59	Stainless steel Extension Shoulder Needle	For use with pen attachments on compasses. Has a small, stepped-in point to limit paper penetration.
	?????	Extra Long Drop Bow Needle	For use with a P-58 pen attachment on the D-710 Drop Bow Compass. Seen in the linked Red Dot box set.
		*COMPASS ATTACHMENTS*
•	P-58	Compass Pen Attachment	Replaces graphite, and is used in conjunction with the P-59 Extension Shoulder Needle. Seen in blue velvet-lined case. Here is what it looks like in use.
•	PA-1	Technical Pen Adapter	-
•	PA-2	Technical Pen Adapter	For use with Leroy and Rapidograph pens. Here is the Instruction Sheet.
		*PENS*
	35p	Long Blade Ruling Pen 5 1/2"	-
	H610	Pen 5 1/2"	Stainless Steel
•	P-65	Ruling Pen 5 1/4"	Seen in blue velvet-lined case.
	P-305	Long Blade Ruling Pen 5 1/2"	-
•	P-314	Microliner Ruling Pen	Bright Chrome
	P-387	Micro Pen	Made up of P-382 Micro Pen Attachment and P-386 Micro Pen handle
•	SP-314	Microliner Ruling Pen	Stainless Steel - Seen in S-171L set.
		*HANDLES*
	P-386	Micro Pen Handle	-
		*PEN ATTACHMENTS*
	43P	Micro Pen Attachment	Bright Chrome
	P610	Pen Attachment	Included in the Beam Compass Set.
	P-382	Micro Pen Attachment	-
	SP-382	Micro Pen Attachment	Stainless Steel - Seen in genuine leather case.
•	S43P	Micro Pen Attachment	Stainless Steel - Seen in S-171L set.
		*CAPSULES*
•	?????	Spare Parts Capsule	For storing 1-6 shoulder needles, 1-7 divider needles, and/or spare leads.