I'm presuming you mean a model 1890 slide action ,alot of factors are involved in valueing it,first off ,they were made between 1890-1932 and apx 849,000 were produced in 3 basic models,they were the 'first model' ,case colored receiver made from 1890-1892,solid frame ,'second model'this model will be solid frame with case colors up to the first 15000 of both md1+md2,there after these were made in takedown versions in starting in 1892.after these 2 model they made the most common version.