Thank you for submitting your item for appraisal. This appears to be a highly decorative screenprint on embossed paper after a design by Elizabeth Brownd.
Such serigraphs were intended as wall decoration and can not be compared to seriously limited edition prints, e.g. an edition size of one hundred. An edition size of 2500 ( "in this coloration" ) is rather unlimited and for that reason the estimate is low, based on auction results of similar items offered or sold at auction. There is no measurement for the sentimental value you might attach to it.