Jim - Most .25 and .32 caliber pocket models fall in the $250-350 value range. This is for common variations in very good or better condition. The serial number of the example in question places it as a common variation but at 75% I would most likely value it at $200. For a pocket model to achieve upward of $350 it would need to be a less common variation or have a desirable use marking (police, army, navy, retailor etc...) or be in like new condition. There are enough of these around to require collection quality examples to be in very good or better condition. Currently in the market (on line auctions) many sellers are starting/asking far more that actual value but you will rarely see sales at inflated prices. IMHO for what it is worth.
Regards,