3 images
Diameter Large/Small Stainless parts
argument 166:110
ratio 1.509
In the calipered 3rd picture 55:83 for diameters Dynodon has given the diameters as 0.50 inches and 0.75 inches
argument 55:83::1:<val>
1.509
Therefore top slot is also 0.5 inches and the other slot .25 inches Inital image so graciously provided by Dynodon