214 Clarendon Street, 502 Boylston Street, Boston, Massachusetts, United States.
Briefpapier-Lieferant und Verleger / Stationery supplier and publisher
A speciality of Maclachlan's was the supply of technical drawing instruments and materials to M.I.T. students.
Known publishing dates, between 1909 - 1915.
Known to be at 214 Clarendon Street in 1895 and 502 Boylston Street in 1910. The two addresses are only 30 yards apart.
Reference: The Tech Newspaper Advert.
Lid consisting of a stoneware insert and a pewter hinged lid assembly on the featured stein. The insert mirrors the M.I.T. crest on the stein front with the Latin motto "Mens Et Manus" or Mind and Hand. 
An unnumbered 1/2 Litre J.W. Remy stein, produced as a special order for A.D. Maclachlan of Boston, Mass. to supply to the engineering students of the Massachusetts Institute of Technology, (M.I.T.) 
Basemark on the featured stein, "Made in Germany for A.D. Maclachlan. Boston. Mass". 