Can anyone id this 20mm?

[archmoco]

Hi,

A friend has asked me to see if anyone can id this case for him, sorry i've only the photos he sent me. It's a steel case 20mm?

Anyone any ideas?
Regards
Michael

 

[charley777]

20x139?

Hi...looks like a steel 20x139 (rim 28.5mm) for Oerlikon KAD , Hispano HS-820, US M139 etc etc. Do the measurements fit? Many experts on this site who can tell you much more than me :tinysmile_grin_t:

 

[Weasel]

Hi Michael,
Have a look at the following link. There are a few other threads about this round if you have a search about.

http://www.bocn.co.uk/vbforum/hs-820-t71346.html?t=71346&highlight=20x139


Best regards Weasel.

 

[archmoco]

Once again thanks guys
http://www.snopes.com/photos/accident/tulsacrash.asp

Hi Michael,
Have a look at the following link.

http://www.bocn.co.uk/vbforum/hs-820-t71346.html?t=71346&highlight=20x139


Best regards Weasel.