Envelope and letter sign with word not valid as the headline

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Size: 5000px × 4200px
Photo credit: © Thanee Hengpattanapong / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: account, agreement, ailing, background, banner, bedridden, business, concept, defective, design, disability, disable, document, envelope, false, handicap, health, illness, ineffective, infirm, injury, invalid, letter, medical, nul, null, office, payment, person, product, project, seat, service, sign, support, task, unscientific, unsupportable, unwell, valetudinarian, valetudinary, valid, vector, vectors, void, wheelchair, word, work, wrong