AFC and AMF wings

[seaeagle25]

Hi there guys

I have noticed over the years that occasionally a set of AFC wings surface for sale but I have never seen AMF wings (except in a museum). Considering the AMF wing with crown was ordered in December 1915 and the one without crown was ordered in February 1916 and ran all this year, all of 1917 and up to February 1918 when the AFC wing was introduced, one would expect there would be quite a few on the market. Maybe the pilots had to surrendered the AMF wing when the AFC wing was issued to them? Any thoughts?

Regards

Doug