pair

I only knew about ਸ਼ ਖ਼ ਗ਼ ਜ਼ ਫ਼ ਲ਼ (the 6 pair bindis).However, I was doing some research and found ਕ਼ It appears to be used tomake a "q" sound like in "queen". Does anyone know if this is a valid letter of Gurmukhi. Maybe it was a letter that was added, but never made it to the standardized...

Reuters - A 105-year-old survivor of the Nazi's Dachau concentration camp and his 100-year-old wife have earned the title of the world's oldest married couple. http://us.rd.yahoo.com/dailynews/rss/oddlyenough/*http://news.yahoo.com/news?tmpl=story&u=/nm/20050715/od_uk_nm/oukoe_life_couple