Thompson 50 Series M

The 50 Series M line from Thompson has 4 sizes listed, from 127 to 184 mm long and from a 43 to a 50 ring gauge.

Every size in the line

Vitola	Size	Length	Ring gauge	Strength
50 Series M #57 Cameroon Robusto	Robusto	127 mm	50	Medium
50 Series M #58 Cameroon Corona	Corona	140 mm	43	Medium
50 Series M #60 Cameroon Lonsdale	Lonsdale	165 mm	43	Medium
50 Series M #61 Cameroon Churchill	Double Corona	184 mm	50	Medium