Does it look like this one??

If so it was made by Beretta back in the early '80's with limited production. Mine came with powder flask, shot flask and a number of tools.
I've had mine since about '82 and have had very good luck with it. Have taken pheasants, ducks, geese, bunnies, doves and bushy tails. The gun always goes off, it's pretty light and easy to carry. The load I use is 80gr of 2F and 1 1/8 oz of shot.
They go for around $500 to $800 around here (SE Wisconsin) depending on condition and accessories.
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