The 3 blues (30.4) measured 1.885"Sometimes I had to design cooling systems off customer sketches & photos. Not having all the dimensions it often was tough scaling the pictures.
Guess I was off .025 on your group!🤔
First glance I was thinking 1-3/4" and was hoping to see a picture of the muddy boots...lol
We are in a heatwave here with 40s day & 20s nite.
No mud till midday.