When riding a bicycle, one must respect traffic rules, maintain traffic order, and ensure traffic safety!

骑自行车要遵守交通规则,维护交通秩序,保证交通安全!
Qi zixingche yao zunshou jiaotong guize, weihu jiaotong zhixu, baozheng jiaotong anquan!
When riding a bicycle, one must respect traffic rules, maintain traffic order, and ensure traffic safety!
1955, December
Shanxi Provincial Department of Transportation, Highway Bureau (山西省交通廳公路局)
38x54 cm.
PC-1955-s-007

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