1917 Brazilian end shake

[greasepiggy]

Hi. I saw a 1917 Brazilian in a LGS and it has more end shake than I'd like. My question is, is the end shake adjustable with shims on the prewar models like it is on the later guns. I have no experience with prewar guns and I'd like to know before I made an offer.
Thanks!

 

[Muley Gil]

Yes, it is.