1940-50s Pittsburgh Pirates 4x5 Photos, ID Help
 

I found these and was curious if anyone knew exactly what they were, narrowed the years down to late 40's, early 50's. Any value in these? Thanks!

http://s30.postimg.org/fb54c08z5/DSC_1631.jpg
gifs upload

20 total in the lot, assume some team issue type, but haven't found them in any catalog I have searched

Fleming played with the Pirates for 1 year, his final year in 1949. MacDonald only played 1950 and 1953 and 1950 was his first professional season. Basgall played 1948, 1949 and 1951. Did not make the team in 1950.
The uniforms were the same from 1948 to at least 1953, which match your photos. If the photos taken the same grapefruit season, by looks of the Ball Field, then 1950 would be the year.