If it's not immediatley apparent, you won't.
Parts are no longer made for that model. Your best bet is one of the auction sites or http://www.e-gunparts.com/
the make of the shotgun is Daiwa model 500 it's a 12 gauge
You must mean the Model 97. Model 94 is a rifle?
You lick it.
Under trigger
Try gunpartscorp.com
Try www.gunpartscorp.com
We have parts for that model. sales@countrygunsmith.net
Do a google search for "Winchester Model 12".
Need model number
No