Iron Measure Dated 1846 & Proof Marked "A.L.N." on the Handle, just below the Crown on the base of the Stick. There is a single Crown Stamped on each of the Three sided Graduated Scales.
I believe it is originally from the Colonial Canadian Province of Quebec, due to the "Triple Crowns" stamped just above the Date on the handle. Just below the Date are more Die Stamped Letters & Numbers as follows :
Iron Rule Measures 27 3/4 inches Long. Width is 5/8 inches by 3/8 inches thick. Metric 704.85 mm Long, by 15.875 mm Wide, by 9.525 mm thick. ( The scale alone is 23 1/4 inches or 590.55 mm long without the handle )
Weighs 2 Pounds and 10.9 Ounces.
There is a Punched Square Diamond Hole in the end of the Iron Rule. There is currently a Leather string in the hole serving as a Lanyard, but you could use the same hole to hang it on a nail in your Private Tool Collection or Museum.
Tree Scale Stick helped to regulate the timber for the King's Navy. I don't know Colonial Royal Canadian Laws from 1846, but in Colonial America the large Trees belonged to the King for use in the Royal Navy, which needed the Largest timbers for the Ships. You could buy & sell the land, but could only keep the smaller trees for building the Barns & Homes. If anyone would like to comment on this law, I would insert that brief information onto this listing.