![File:Erf kleur collectie Hendrix' voeders, kalender 1971 - Limburg - 20469226 - RCE.jpg - Wikimedia Commons File:Erf kleur collectie Hendrix' voeders, kalender 1971 - Limburg - 20469226 - RCE.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/6e/Erf_kleur_collectie_Hendrix%27_voeders%2C_kalender_1971_-_Limburg_-_20469226_-_RCE.jpg)
File:Erf kleur collectie Hendrix' voeders, kalender 1971 - Limburg - 20469226 - RCE.jpg - Wikimedia Commons
![Small : 1961-70 - K976 / 1968 PLEVEN - WOODEN FURNITURE FACTORY , WOMAN Mausoleum lighthouse - Calendar Calendrier Kalender Bulgaria Small : 1961-70 - K976 / 1968 PLEVEN - WOODEN FURNITURE FACTORY , WOMAN Mausoleum lighthouse - Calendar Calendrier Kalender Bulgaria](https://www.delcampe.net/static/img_large/auction/000/261/024/432_002.jpg?v=0)
Small : 1961-70 - K976 / 1968 PLEVEN - WOODEN FURNITURE FACTORY , WOMAN Mausoleum lighthouse - Calendar Calendrier Kalender Bulgaria
![Perpetual Calendar Clock - 10 For Sale on 1stDibs | perpetual calendar wall clock, perpetual clock, vintage calendar clock Perpetual Calendar Clock - 10 For Sale on 1stDibs | perpetual calendar wall clock, perpetual clock, vintage calendar clock](https://a.1stdibscdn.com/a-fine-19th-century-belgium-slate-perpetual-calendar-clock-for-sale/f_9176/f_308330821665668381797/f_30833082_1665668382292_bg_processed.jpg)
Perpetual Calendar Clock - 10 For Sale on 1stDibs | perpetual calendar wall clock, perpetual clock, vintage calendar clock
![Chapter 1 The Seven-Day Week in the Roman Empire in: Calendars in the Making: The Origins of Calendars from the Roman Empire to the Later Middle Ages Chapter 1 The Seven-Day Week in the Roman Empire in: Calendars in the Making: The Origins of Calendars from the Roman Empire to the Later Middle Ages](https://brill.com/cover/covers/9789004459694.jpg)