Parts of rotary drilling jar, also Pittman, Southern California, 1931

11 photographs of parts of rotary drilling jar, Southern California, 1931. "Subject: parts of rotary drilling jar, also Pittman; Agency: McCarty; Client: Axelson; Year: 1931; Job: 1-20-153" -- on envelope front. "Operator's Report: Joe; Original Photographs: 3 8x10, 7; Amount: $5.00, 7.00; Extra Charges: 3603-A-, Cassidy" -- on envelope back.

1931年南加州地区旋转钻井震击器（rotary drilling jar）部件的照片共计11张。信封正面标注内容为：“主题：旋转钻井震击器部件，另含皮特曼（Pittman）相关物料；委托机构：麦卡蒂（McCarty）；客户：阿克塞尔森（Axelson）；拍摄年份：1931；工作编号：1-20-153”。信封背面标注内容为：“操作员报告：乔；原始照片：3幅8×10英寸规格照片、7幅照片；费用金额：5.00美元、7.00美元；额外收费项目：3603-A-，关联方：卡西迪（Cassidy）”