Welch Allyn was created in 1915.
One can find more information on Welch Allyn otoscopes on the official Welch Allyn website. The website has many pictures and information about the otoscopes.
I have not received any 2010 Welch Allyn Price List yet from Welch Allyn so I do not believe there is one yet. I would assume the 2010 Price list won't be available till the end of September or later.
The Welch Allyn diagnostic set is a so-called "Ophtalmic Diagnostic Set". Basically it is a set used by eye specialists (also called ophtalmologists) to examine the patience' eyes. Welch Allyn simply is a brand producing these diagnostic sets.
Deshon-Allyn House was created in 1829.
Allyn Steele House was created in 1775.
Lyman Allyn Art Museum was created in 1932.
Welch's was created in 1869.
Welch Regiment was created in 1881.
I would recommend shopping a few different sites online to compare prices and features.
Robert Welch University was created in 2007.
Welch's Regiment of Militia was created in 1777.
Royal Welch Fusiliers was created in 1689.