The 155 did not get fielded until the 1960s...
Just some data you might be interested in since you were in the artillery.
My gosh, you really don’t care about the subject or context.
Are you so angry and bitter that you are just going to keep posting unrelated nonsense?
Do you care or realize that 1953 and when the 155 howitzer was introduced, has not come up here or have any relevance to anything?