When this putter was first produced, it was referred to as the "Chantilly Putter," after Chantilly, France, the home of its inventor, the Marquis de Chasseloup-Loubat.  Jean Gassiat was the French golf professional who worked at Golf de Chantilly, in Chantilly, France. He was a champion golfer in his own right, defeating Harry Vardon in 1912 to win the French Open. Gassiat used the Chantilly putter as did others.

This particular club is marked "Model LCL" which acknowledges the inventor "Lord Chasseloup-Loubat" and "Rd No. 627,732" which is a British registered design number from 1913.  It is also marked "F.H. Ayres, Ltd, London" in an oval on its head.  This would have been one of the earlier examples of this club, made before Gassiat's name became so connected to the club. 

The 34 1/2" shaft is original as is the rare textured india rubber pistol grip. The sole has a brass plate behind the full length of the leading edge, and three lead soleweights. Two of these soleweights are smaller, and the larger one is located more towards the toe and away from the face.  Somebody was thinking with this layout.  It moves the CG more into the center of the head.

Gassiat putters were made in various nuanced shapes.  This one has a distinctly shallow face and becomes relatively thin as it approaches the back of the head. There are also two alignment lines on the top of the head. They form a cross with one line on the axis of the shaft and the other line on the axis of the sweetspot.  The sweetspot line continues down the face as well. These alignment lines are executed with great precision. They are uniform in depth, perfectly straight, and do not disturb any of the lettering stamped on the head. In the auctioneer's opinion, these lines were installed by the maker. A Very Attractive Club!

TCA1 v2 p537