A gasket for the 1 3/4 inch zenith stromberg 175CD.  The 148007 is superseded by BHH1992. 

This is elbow to carb.

There is also 153955 air-cleaner to elbow... that one is a better quality. 

These carbs get good mileage if you look after them.   Here's an article full of info for tuning...    http://www.bmcno.org/tech%20tips/zenith%20stromberg%20tech%20tips.htm

Postage uses MDF backing to protect it with pallet wrap on top in a fully sealed envelope…   Note the postage stays the same for multiple