VE 4 BRS 383 Bosch distributor

919021A renumbered to 111905205, used from 1948 until 1953.
Porsche 356 used this distributor from 1948 till 1954.
Used in combination with ignition coil TE6A3 / TE6B3 / TK6A3 / TK6A4

Service parts for this distributor:

Here is some information on the changes of VE 4 BRS 383: 
From March 1951 number and letter ID for month and year 
From 17 Sept 1952 both flat and wire type clips used 
From 13 Nov 1952 O-ring 

Photogallery of a 1950 distributor:

Rebuilt distributor by Aircooled Beetle Paradise (Located in Belgium)
Costs for rebuilding the distributor in 2019 was 160€.