Did Winchester sell the Model 1894 with peep sights and if so in what years and does this add any more value?

Yes, Winchester offered the Model 1894 with peep sights, particularly in the later years of production. These peep sights were available as options primarily from the 1920s onward. Firearms with peep sights can be more desirable to collectors, potentially adding value, especially if they are in good condition and retain original features. However, the extent of the added value can vary based on factors such as rarity, overall condition, and collector demand.