Looks like Jean Falla's tube effort as per a ref from PeteM's post:


http://www.doublegunshop.com/forums/ubbt...true#Post222262
Fitted with Falla tubes bespeaks the quality.

If I'm not mistaken, Heym was the one to patent a dreiling with 3 triggers(#60215 - May 24th, 1891).


Kind Regards,

Raimey
rse