As sure as [eggs] are [eggs,] Bird's concentrated egg powder is unrivalled / Alfred Bird & Sons. https://www.rawpixel.com/image/13968812/image-person-public-domain-postage-stampFree Image from public domain license"When the pie was opened, the birds began to sing" the praises of Bird's custard powder / [Alfred Bird & Sons Ltd.]. https://www.rawpixel.com/image/13955703/image-cartoon-art-animalFree Image from public domain licenseThe original and only genuine home specialities : popular for purity and high quality / Alfred Bird & Sons, Ltd. https://www.rawpixel.com/image/14021560/image-paper-public-domain-birdFree Image from public domain licenseThe original and only genuine home specialities : popular for purity and high quality / Alfred Bird & Sons, Ltd. https://www.rawpixel.com/image/13992729/image-background-paper-public-domainFree Image from public domain licenseBird's Concentrated Egg Substitute / Alfred Bird & Sons, Ltd. https://www.rawpixel.com/image/13985414/birds-concentrated-egg-substitute-alfred-bird-sons-ltdFree Image from public domain license