Were the howitzer, about 100mm brass shell cases from WW1, reused

M26 Pershing: Why America's Heavy Tank Arrived Too Late for WWII

Would a 185mm howitzer be useful if it existed? - Quora

Some modern howitzers with caterpillar tracks and turrets look almost like tanks. Are there any hybrids? Has the line become blurred? - Quora

Was there Artillery Shell Recycling in WW2?

Artillery National WWI Museum and Memorial

105mm Howitzer Ammunition - Ammunition

What is the process in which howitzers are fired? - Quora

Artillery Shell Case - Israel

Help identifying this shell case Artillery - General Ammunition Discussion - International Ammunition Association Web Forum

Shell Cases Archives - Sally Antiques

Why don't armies use artillery like they did in WW2 and WW1 days? - Quora

105mm Howitzer Ammunition - Ammunition

WW1 Trench Art Brass Shell Case Tobacco Jar C1912. British 3 Howitzer Shell. Antique Pipe Smoking Accessories. Militaria Xmas Gifts for Men