Data: Maritime Post of Spanish America, 1764-1808

Generalized routes of the regular maritime ships of the Royal maritime post and subsidiary routes, 1764-1808. Full metadata in the attached textfile1764年至1808年，皇家海事邮政（Royal Maritime Post）定期海事船舶的通用航线及附属航线。完整元数据详见所附文本文件。