A Massachusetts business owner doesn’t know who broke into her company, but she does know they had to have been pretty strong.

Donna Brewer, owner of Savino Empire Monuments in Pittsfield, tells the Berkshire Eagle that someone cut a hole in her front fence one Wednesday morning and made off with a 350-pound granite headstone worth about $1,700.

She’s been in business for 21 years and has never had a headstone stolen.

She says the gray granite piece would have required “two real big strong guys” to carry, plus a truck.

She says it never occurred to her that someone would steal a headstone, so her security cameras don’t cover the front display area.

Brewer has asked area headstone engravers and cemeteries to keep an eye out for it.

Police are investigating.