J. A. Henckels was created on 1731-06-13.
Jeff Henckels was born in 1984.
In the J.A. Henckels knife range, the "Professional S" series is considered a higher-end line compared to the "Extra" series. The Professional S knives are made with higher quality materials and typically have better construction and performance.
Henckels
One can find reviews about the Henckels Pro S on a number of websites. Zwilling J.A. Henkels Twin Pro S review on Amazon, Henckels collection review on Chow and ConsumerReport are some examples of reviews about the Henckels Pro S.
Paul Henckels was born on September 9, 1885, in Hrth, North Rhine-Westphalia, Germany.
J. J. Fad was created in 1985.
J. J. Ugland was created in 1930.
J. J. Scannell was created in 1917.
Henckels knives are excellent quality, no question. However, you will not find the age of one using the marking you suggested. 22-10 is the rating of the density of metals used in the manufacturing, not the time or date it was manufactured. You will need to look for an actual date or "series" number to determine it's age.
J J's Dream Stakes was created in 1976.
J. J. Jackson's Dilemma was created in 1970.
J. J. Carlock House was created in 1825.