Yes, I think you made a good buy - and your barrels are Mod and Improved Cyclinder....
Browning choke marks on older barrels - prior to changeable screw in chokes with the first Invector series:
From a link I found ...
BROWNING CHOKES AND THEIR CODES (ON REAR LEFT-SIDE OF BARREL)
'*' designates full choke (F).
'*-' designates improved modified choke (IM).
'**' designates modified choke (M).
'**-' designates improved cylinder choke (IC).
'**$' designates skeet (SK).
'***' designates cylinder bore (CYL).