Hi,  I am currently restoring the stack to a Simplex action and
I have briefly heard from a few people that there is (or was) a jig
for testing the cartridges before assembling it.

Is there anyone that has an extra of these they'd be willing to
sell, or at least some information on what it is and if it's useful?
I don't want to cover the pneumatics and have the valves not work.

Thank you,

Luke Lindblom
lukelindblom@icloud.com.geentroep [delete ".geentroep" to reply]