The M155 Shikari was offered in 44mag and 45-70 from 1973-1981, but not in a factory combo that I've seen, 10ga may have been added as an accessory or self installed, no SB1/SB2 then, just the cast iron frame. Value is what you want to pay, a really nice Shikari may go for as much as a new modern SB2 45-70, maybe more, great cast bullet shooters, but rated only for trapdoor loads.
Tim