The pipe seems to have started from a standard rod of aluminium such as used by Bryson. This has an adjustable smoke flow valve on the front. The bowl is all briar and the bowl retaining screw is smaller than Bryson, larger than Kirsten. Overall length is 5 inches.
The front cap is a push fit, unlike the Bryson. Internally the bore(which is different i.d. to Bryson) is blanked bit side of the smoke hole from the bowl. The screw-in rod on the end cap then adjusts the smoke flow through the hole in this blank.