This is a pretty spectacular set of blackwood Hendersons. The engraved silver and ivory are in nearly pristine condition, and the pipes play beautifully.

The ferrules and caps are hallmarked 1928, and the slides 1929. The stocks are perfect blackwood replacements with the original silver ferrules. There is a barely visible crack in the blowstick just above the projecting mount, so at some point the blowstick was bored out and a thin copper sleeve was inserted.

There have been no repairs to the drones or silver. The ivory bulb has cracked at some point, but the crack was filled and the piece is stable. The bottom bass joint was replaced using the original mounts by Brian Donaldson in 1985.

The Peter Henderson company was, of course the premier pipemaker of the 20th century, perhaps of all time. Their best pipes were made before 1950, and their pre-1930 pipes are the most sought after of all. Their tone is full and rich and they are renown for their remarkable steadiness. This set is no exception.

UPDATE: Since this set was posted, they have been identified as set purchased around 1984 by Brian Donaldson of Inveran Bagpipes from Brigadier MacLennan, the son of D. R. MacLennan, the half-brother of G.S. McLennan. D.R. died that year, and the pipes were his. Donald Ross MacLennan was very prominent piper and piping figure in his own right. He is one of the few players to win the Gold Medals at Oban and Inverness in the same year (1956). You can read his biography here: D. R. MacLennan. Whether these pipes are the same as those in the photo or are the pipes with which he won the Medals with is not yet certain.