I've dated her based on the fact that while the case employs cut nail construction (see pictures 7 and 9), the drawers use extruded nails (see picture 10). There's no question however but that the paint is 100% original along with the porcelain knobs.
Note moreover the somewhat unusual styling just above the drawers. Moreover, when acquired, one drawer contains the laminated note that reads Cupboard made by my great uncle. Tools used were saw, hammer and jack knife (see my 11th picture). Unfortunately the note gives no dates or names. The item "Late 19th C miniature step back cupboard original paint" is in sale since Wednesday, November 24, 2021. This item is in the category "Antiques\Primitives". The seller is "pco2000" and is located in La Canada Flintridge, California. This item can be shipped to United States, Canada, United Kingdom, Mexico, Germany, Japan, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.