|ZF41-41/1 Production Years
I have estimated the production years of ZF41 series scopes as shown in the diagram below. The explanation follows.
Some early ZF41 Type1(*1) were made. They had no designation (only marked 'Z.F.'), no manufacturers code cxn (marked 'Busch Rathenow'). Later, ones still having no designation but with the code appeared (only bmj and cxn).
2) early 1941:
ZF41 Type1 marked 'Z.F.41' on production.
3) early-mid 1942:
ZF41 Type1 on full production.
4) late 1942:
ZF41 Type2 (and ZF40＊(*5)) on production by cxn.
5) early 1943:
ZF41/1 (and ZF40) on production.
6) mid-late 1943:
ZF40＊ and ZF40 were canceled orders and reworked into ZF41 or ZF41/1.
7) from 1944:
The production quantity of ZF41/1 decreases obviously
| Since the number "40" reminds the year 1940, many people
believe early scopes were marked "ZF40" and then reworked into
"ZF41" or "ZF41/1". And is written so in some books.
But all evidence reveals the production of ZF40 were as shown in the diagram
|(*1)||What is 'Type1'? See this page. >>Types and Differences of ZF41|
|(*2)||The code 'K.F.' indicates the scope is greased with cold-resistant Invarol, which can be used to -20 degrees C. Reference vi, p.216|
|(*3)||Reference C, p.74|
|(*4)||The code 'O' indicates the scope is greased with the vacuum grease (Vakuumfett) 1416, which can be used to -40 degrees C. Reference vi, p.217|
|(*5)||For info on ZF40＊ and ZF40, see >>ZF40 Markings.|
|(*6)||The code '+' indicates the scope is lubricated with cold-resistant instrument grease (Instrumentenfett) 1442, which can be used to -40 degrees C. Reference vi, p.217|
|(*7)||Reference F, p.306|
|(*8)||Reference C, p.97|
|(*9)||Reference F, p.186|
|(*10)||Reference F, p.185|
|LIST of REFERENCES|