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Abstract the harold a.Parker studio collection of negatives consists of 5157 glass plate negatives, film negatives, and panoramic negatives, 1889-1949, that depict commercial, residential and landscape sites in and around pasadena and southern california.The images provide a look at the commercial, residential and social development of pasadena and surrounding areas during the early years.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.